# include <iostream>

using namespace std;

int fa(int a,int b);
int fb(int a,int b);

int main ()
{
    int a=5,b=10,c;
    c=fa(a,b);
    cout<<c<<endl;
    c=fb(a,b);
    cout<<c<<endl;

    cin>>c;
    return 0;
}

int fa (int a, int b)
{
    int c;
    c=fb(a,b);
    return c;
}

int fb (int a, int b)
{
    int c=15;
    c=(a+b>15)?(a+b):c;
    return c;
}
